Update app.py

app.py

@@ -1,13 +1,17 @@
 from fastapi import FastAPI
+from pydantic import BaseModel
 from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
 
 app = FastAPI()
+
+class SentimentRequest(BaseModel):
+    message: str
     
 @app.get("/")
 def greet_json():
     return {"Hello": "World!"}
 
 @app.post("/sentiment")
-def sentiment_analysis(message: str):
+def sentiment_analysis(payload: SentimentRequest):
     analyzer = SentimentIntensityAnalyzer()
-    return analyzer.polarity_scores("This is a positive message")
+    return analyzer.polarity_scores(payload.message)